I once got stung by a client's projector when I estimated installation based on using the Marantz projector's trigger output. That 12 volt trigger only put out about 25 mA and I couldn't find appropriate equipment that needed 25 mA or less to trigger.
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
